Min Qi Wang

Family and peer influences on smoking behavior among American adolescents: an age trend.

PURPOSE To study the age trend of family and peer influence on adolescent smoking behavior using a national sample. METHODS Adolescents (N = 6,900), ages 14 through 18 years, from the 1988-89 Teenage Attitudes and Practices Survey, were selected for analyses. Data collected included measures for smoking status of the adolescent and their family and peers. RESULTS Peer influence, such as the smoking status of best male/female friends, proved to be the most significant and consistent predictor across all ages, while parental influence had little effect on adolescent smoking status. Gender-specific effects were noted in the peer influence of adolescent smoking. CONCLUSIONS The peer influence on adolescent smoking, across ages 14 through 18 years, confirmed previous literature. However, no differential effect of family and peer influence on adolescent smoking was evident.

Characterizing nutrient intakes of adolescents by sociodemographic factors.

PURPOSE The purpose of this study was to provide a description of the current dietary intake of a large sample of U.S. adolescents and to identify sociodemographic risk factors for nutrient intakes that did not meet recommended levels. METHODS The 1987-88 USDA Nationwide Food Consumption Survey was used to assess the nutrient intake of 933 adolescents aged 11 to 18 years. Analysis of covariance was used to determine the effect of the following on the nutrient intakes of males and females: household income and size, race, geographic region, degree of urbanization, and head of household status. Subject age was entered as a control variable. RESULTS Vitamin A, vitamin E, calcium, magnesium, and zinc were the nutrients most often consumed below recommended levels. In addition the females consumed low levels of phosphorus and iron. Percent calories from total fat and saturated fat and mean sodium intakes were above recommended levels for the majority of the sample. Females were more likely to meet cholesterol recommendations than males. Race and region affected the most nutrient intake variables. For the females, living in the south was a significant predictor for low intakes of several essential vitamins and minerals. CONCLUSIONS On average, the adolescents consumed diets that were low in several essential vitamins and minerals and high in some nutrients related to increased incidence of chronic disease. There were groups of teens who had dietary patterns that placed them at especially high risk, in particular the black and Southern females.

The 1987–88 Nationwide Food Consumption Survey: An Update on the Nutrient Intake of Respondents

This analysis is based on the responses of participants in the most recent Nationwide Food Consumption Survey in 1987–88. The data are descriptive of nutrient intake of a large number of Americans. The results do not provide population estimates for the United States.

Participation in Health Education, Health Promotion, and Health Research by African Americans: Effects of the Tuskegee Syphilis Experiment

Abstract This study investigates the effect of the Tuskegee Syphilis Experiment (TSE) on participation in health promotion activities and research studies by African Americans. Random-digit dialing was used to interview 421 adults with telephones living in households in Jefferson County, Alabama in the summer of 1994. Respondents were asked if they had ever heard of the TSE and, if yes, because they knew about the experiment, were they less interested in participating in health promotion or research activities. The primary results were that African Americans, in general, reported less interest in participating in health promotion and research because of their knowledge of the TSE. African American males in particular reported a high degree of resistance because of knowledge of the TSE. These results may have implications for practitioners and researchers recruiting African American subjects for research studies and participation in health promotion and health education programs. It may be necessary to dis...

Sociobehavioral influences on smoking initiation of hispanic adolescents

PURPOSE To study the sociobehavioral influences on smoking initiation of Hispanic adolescents over a 3-year period using a national sample. METHODS Hispanic adolescents (N = 385), ages 15-22 years, from the 1989 and 1993 Teenage Attitudes and Practices Surveys (TAPS I and II), were selected for analyses. Data collected included measures of smoking initiation and attitudes, beliefs toward smoking of the adolescent, and smoking status of family and peers. RESULTS At the 3-year follow up, 43.4% of nonsmokers at TAPS I had initiated smoking. Risk factors associated with initiating smoking were having male and/or female friends who smoked, and positive attitudes and beliefs towards smoking. Parental and sibling smoking status had little effect on adolescent smoking status. CONCLUSIONS The peer influence on Hispanic adolescent smoking is consistent with previous research on Caucasian and African-American adolescents. The formation of attitudes and beliefs toward smoking in this population warrants further examination given the influence of attitudes and beliefs on smoking initiation in this study.

Desire for Weight Gain and Potential Risks of Adolescent Males Using Anabolic Steroids

This study examined the perceptions of adolescent males regarding their physical strength, health status, and desire to gain weight and their perceptions of anabolic steroid use. Subjects were 12th-grade boys (N = 3403), drawn from a pool of 150 high schools nationwide, who completed a health questionnaire. Analysis indicated 47.0% (n = 1475) who wanted to gain weight, perceived themselves as of less than average strength and having good health, and were sports participants. Also, among those who desired weight gain, about 24% (n = 345) were not sure about the most dangerous health risks associated with anabolic steroid use, and 16% (n = 221) did not want to see the use of anabolic steroids in sports stopped. The findings indicate that adolescent boys, who desired weight gain and currently abstained from anabolic steroid use, might be at risk for becoming users.

Association of depressive symptoms and school adolescents' smoking: a cross-lagged analysis.

This study examined the association of depressive symptoms of adolescents and their smoking behavior. A national cohort sample of school adolescents (N = 5,855) who participated in the 1989 and 1993 Teenage Attitudes and Practices Survey was obtained. The information from this survey included measures of smoking behavior and a series of factors related to depressive symptoms during a 3-yr. span. A cross-lagged analysis with Kendall tau b correlations was used. Judging from the magnitude of the cross-lagged correlations, the direction of causation cannot be ascertained. Rather, a reciprocal relationship between depression and smoking may be suggested.

Changes in Body Size of Elite High School Football Players: 1963–1989

An examination of the heights and weights of members of the Parade Magazines High School All-American Football Teams from 1963–1971 indicates no significant changes in the Body Mass Index of these elite athletes whereas an increased pattern in Body Mass Index was noted within this group from 1972–1989. The large increases in Body Mass Index after 1971 among the All-American high school football players raise interesting research questions; in particular, what portion of these gains can be attributed to improved nutrition and training techniques and what portion is the result of use of performance enhancing drugs such as anabolic steroids?

Psychomotor and Visual Performance under the Time-Course Effect of Alcohol

This study examined reaction time (RT), anticipation time (AT), and visual performance under the influence of blood alcohol concentration (BAC), using a repeated-measures design. Subjects (8 men and 8 women), 21 to 40 yr. of age, participated in both single- and double-dose sessions, in which they drank approximately 2.3 oz. and 4.6 oz. of 86-proof vodka, respectively. The breath BAC was measured at 5-min. intervals. The RT, AT, and visual performance were tested every 20 min. for 140 min. in both sessions. In general, results indicated that RT, AT, and stereoscopic vision were impaired more in the rising BAC curve than the falling BAC curve. In addition, the impairment tended to be greater for the double-dose than the single-dose session. The far and near visual acuities were not affected by the BAC.

Self-reported depression and risk-taking behaviors among Hispanic adolescents

In assessing the relationships between self-reported depression and certain key risk-taking behaviors among a national sample of Hispanic adolescents (N = 935. ages 12 to 19 years), girls who reported depression were significantly more likely to engage in these behaviors than girls who did not report depression. No significant differences were found among boys (n = 470), although they were more likely than girls (n = 465) to take risks regardless of depressive state. These results suggest that depressive symptoms may be a marker for engagement in risk-taking behaviors among Hispanic girls.